Process of granulation and integration of melted material and apparatus for making the same

    公开(公告)号:CZ9902306A3

    公开(公告)日:2001-06-13

    申请号:CZ230699

    申请日:1998-10-14

    Inventor: EDLINGER ALFRED

    Abstract: PCT No. PCT/AT98/00243 Sec. 371 Date Jun. 29, 1999 Sec. 102(e) Date Jun. 29, 1999 PCT Filed Oct. 14, 1998 PCT Pub. No. WO99/22031 PCT Pub. Date May 6, 1999In a process for granulating and comminuting molten material, the slag melt is acted upon by compressed water and discharged together with the vapour formed. The liquid slag is introduced into a granulation chamber in a free flowing jet while directing compressed water jets against the slag jet, whereupon the solidified and granulated slag is conducted through a pneumatic conveyor duct and a distributor along with the vapour formed. The partial streams leaving the distributor, via conically tapering nozzles are transferred into a grinding space exhibiting a lower pressure than the granulation space and from which the comminuted and solidified material is drawn off.

    PROCESS FOR PRODUCING PIG IRON AND CEMENT CLINKER

    公开(公告)号:CA2132733C

    公开(公告)日:2001-03-20

    申请号:CA2132733

    申请日:1994-01-26

    Inventor: EDLINGER ALFRED

    Abstract: In a process for the preparation of pig iron and cement clinker in a fusion gasifier (3) in which the charge is at least partly preheated and possibly deacidified and subjected to preliminary reduction or is used in the form of scrap, coal is blown into a fluidized bed (7) and gasified with the reduction of the charge and pig iron (8) and slag (9) are tapped off in liquid form, the procedure is such that the lime charge introduced into the fusion gasifier (3), possibly together with a portion of an iron ore, is preheated in a preheating shaft (1) and calcined and charged according to the clinker composition required.

    184.
    发明专利
    未知

    公开(公告)号:BR0006077A

    公开(公告)日:2001-03-20

    申请号:BR0006077

    申请日:2000-04-14

    Inventor: EDLINGER ALFRED

    Abstract: A method for processing steel slags and optionally iron carriers such as, e.g., electric furnace slags, converter slags, dusts derived from steel production, mill scale or secondary metallurgical residues, in which the molten steel slags or iron carriers are supplemented with chromium ores or chromium-containing and/or nickel-containing dusts in order to adjust a slag basicity of 1.2 to 1.6, whereby the bath temperature is maintained at above 1600° C., in particular between 1650° C. and 1800° C., and a carbon-containing iron bath is provided or formed. In addition to environmentally safe slags, a high-grade ferrochromium alloy may be recovered, thus enhancing the economy of the method.

    Method for granulating and grinding molten material and device for carrying out said method

    公开(公告)号:AU730428B2

    公开(公告)日:2001-03-08

    申请号:AU9615098

    申请日:1998-10-14

    Inventor: EDLINGER ALFRED

    Abstract: PCT No. PCT/AT98/00243 Sec. 371 Date Jun. 29, 1999 Sec. 102(e) Date Jun. 29, 1999 PCT Filed Oct. 14, 1998 PCT Pub. No. WO99/22031 PCT Pub. Date May 6, 1999In a process for granulating and comminuting molten material, the slag melt is acted upon by compressed water and discharged together with the vapour formed. The liquid slag is introduced into a granulation chamber in a free flowing jet while directing compressed water jets against the slag jet, whereupon the solidified and granulated slag is conducted through a pneumatic conveyor duct and a distributor along with the vapour formed. The partial streams leaving the distributor, via conically tapering nozzles are transferred into a grinding space exhibiting a lower pressure than the granulation space and from which the comminuted and solidified material is drawn off.

    186.
    发明专利
    未知

    公开(公告)号:DE59702657D1

    公开(公告)日:2000-12-28

    申请号:DE59702657

    申请日:1997-01-16

    Abstract: PCT No. PCT/AT97/00006 Sec. 371 Date Sep. 16, 1997 Sec. 102(e) Date Sep. 16, 1997 PCT Filed Jan. 16, 1997 PCT Pub. No. WO97/26381 PCT Pub. Date Jul. 24, 1997In a process for producing pig iron, nonferrous heavy metal alloys, ferrochromium carbure or carbon-free ferrochromium and synthetic blast furnace slags, using metal-oxide-containing waste incineration residues or slags, the charging materials of waste burning, e.g., car shredder light fractions and/or metallurgical dusts, are at least partially oxidized and subsequently are reduced while separating nonferrous metals or alloys, whereupon the oxidic slag phase depleted from metals or alloys is mixed with liquid steelworks slag optionally upon further addition of metallurgical dusts, whereupon crude steel is drawn off while lowering the viscosity of the steelworks slag and the remaining slag portion is subjected to further reduction while recovering pig iron and optionally Fe chromium alloys, whereupon the resulting synthetic blast furnace slag is discharged.

    187.
    发明专利
    未知

    公开(公告)号:AT197722T

    公开(公告)日:2000-12-15

    申请号:AT97900140

    申请日:1997-01-16

    Abstract: PCT No. PCT/AT97/00006 Sec. 371 Date Sep. 16, 1997 Sec. 102(e) Date Sep. 16, 1997 PCT Filed Jan. 16, 1997 PCT Pub. No. WO97/26381 PCT Pub. Date Jul. 24, 1997In a process for producing pig iron, nonferrous heavy metal alloys, ferrochromium carbure or carbon-free ferrochromium and synthetic blast furnace slags, using metal-oxide-containing waste incineration residues or slags, the charging materials of waste burning, e.g., car shredder light fractions and/or metallurgical dusts, are at least partially oxidized and subsequently are reduced while separating nonferrous metals or alloys, whereupon the oxidic slag phase depleted from metals or alloys is mixed with liquid steelworks slag optionally upon further addition of metallurgical dusts, whereupon crude steel is drawn off while lowering the viscosity of the steelworks slag and the remaining slag portion is subjected to further reduction while recovering pig iron and optionally Fe chromium alloys, whereupon the resulting synthetic blast furnace slag is discharged.

    189.
    发明专利
    未知

    公开(公告)号:ES2149752T1

    公开(公告)日:2000-11-16

    申请号:ES99924566

    申请日:1999-06-09

    Inventor: EDLINGER ALFRED

    Abstract: In a method for desiliconizing pig iron prior to subsequent refining to steel molten steel slag after blast furnace tapping is charged onto the tapped pig iron bath, and optionally onto the blast furnace slag bath, in an amount corresponding to the Si content of the pig iron and the Fe and/or Cr oxide contents of the slag. The amount of steel slag is calculated such that the Si content of the pig iron is reduced to below 0.5% by weight at a simultaneous increase in the SiO2 content of the slag while reducing to liquid metals the Fe and/or Cr oxides of the slag. The slag-iron bath temperature is maintained at below 1500° C.

    METHOD FOR PROCESSING STEEL SLAGS
    190.
    发明专利

    公开(公告)号:CA2334277A1

    公开(公告)日:2000-11-02

    申请号:CA2334277

    申请日:2000-04-14

    Inventor: EDLINGER ALFRED

    Abstract: The invention relates to a method for processing steel slags and optionally ferriferous materials such as e.g. electric furnace slags, converter slags, dust produced during the manufacturing of steel, rolling mill cinders or secondary metallurgical tailings. According to the inventive method, the molten steel slags or ferriferous materials are mixed with chrome ores or wi th dust containing chrome and/or nickel in order to adjust the slag basicity to a level ranging from 1.2 to 1.6, whereby the bath temperature is maintained at a temperature greater than 1600 ~C, especially between 1650 ~C and 1800 ~C, an d an Fe bath containing carbon is provided or configured. In addition to the environmentally compatible slags, a high-quality ferrochrome alloy can be obtained, whereby the economic efficiency of the method is improved.

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